Bag lock



' Nov. 16, 1926.

F. GRIMM BAG LGCK Filed May '1. 19 24 2 Sheets-Sheet a Illllll III...

Fijs I N VE N TOR.

ATTORNEYS.

Patented Nov. 16, 1926.

UNITED STATES PATENT OFFICE.

FRED GRIMM, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO MILWAUKEE STAMPING COMPANY, OF WEST ALLIS, WISCONSIN.

BAG LOCK.

Application filed May 1, 1924. Serial No. 710,214.

My invention relates to improvements in bag locks.

The objects of my inventlon are to provide a bag frame with an eflicient and durable locking mechanism having wards formed in,- tegrally with a sheet metal longitudinally slotted cylinder and peculiarly adapted for variation, at small expense, in the position of the wards of successively formed locks, whereby different locks will require differently formed keys; to provide a lockmg mechanism which can be almost wholly constructed of sheet metal stampings; to provide locking mechanism for bag frames which cannot be unlocked by unauthor zed persons; to provide locking mechanism which, when unlocked, may serve as an efficient catch of improved type forholdmg the jaws of a bag frame in closed position; and in generahtoprovide bags with more serviceable and less expensive locks than those heretofore used.

In the drawings:

Figure 1 is an elevation of my improved 7 locking mechanism with the parts in unlocking position and showing fragments of an associated lock side band of a bag frame. Figure 2 is a plan View of the locking mechanism, showing also a fragment of the hasp side band and hasps in slightly open position.

Figure 3 is a view similar to Flgure 1, showing the parts in locking position.

Figure l is a sectional View drawn on l ne H of Figure l. v

Figure 5 is a detail view of the lock supporting frame and lock with key inserted.

Figures-6 and 7 are sectional views drawn respectively on lines 66 and 7-7 of Figure 5. v t

Figure 8 is a sectional view drawn on line 8-8 of Figure 7. I

Figure 9 is a sectional view drawn on line 9-9 of Figure 8.

Figures 10 to 14 inclusive are detailisometric views of the parts of the lock and supporting frame. p 7

Like parts are identified by the same reference characters throughout the several views. I V I The casing 1 contains a catch plate 2, which is of sheet metal, having upset hasp engaging'catches or shouldered extremities 3, which are adapted to enter apertures 4: in the hasps 5 to hold the jaws of thebag frame in closed position. The outermargins 6 of the catches 3 are beveled or inclined from the catch plate2 toward their extremities in such a manner that the pressure of the hasps 5 against the beveled surfaces 6 will tend to retract the catch plate 2 away from the front wall of the casing. The catch plate is guided by posts 7, the ends of which are secured to the front and rear walls of the casing,- and springs 8 coiled about these posts urge the catch plate 2 in the direction of the front wall or the casing 1. A detent plate 10 is held against the rear wall of the casing by the springs 8, said plate being also supported by the posts 7 which pass through apertures in this plate. The detent platecarries an arm 11, the extremity of which projects into a slot 12 in a locking slide '13 adapted to move longitudinally along the top wall 1 1 of the casing. The slide 13 is provided with a substantially V-s'haped projection 15 extending from the rear side margins of the slot 12 intermediate of its ends. When the slide 13' is moved longitudinally of the casing in either direction, this projection 15 must engage and actuate the detent arm 11 to allow the, slide to move to its other position of adjustment.

The-springs 8 allowthe detent plate to tilt or move inwardly along the posts 7 to allow the extremity of the detent arm 11 toclear the projection 15. Thereupon, the detent plate 10 is restored to its normal position by the springs 8 and the detent arni engages 1n the slot 12 on the opposite side of the projection 15 to hold the slide 13 in the position to which it has thus been adjusted. .The slide 13 isactuated by means of the key 18 having wards 19'adapted'to pass between the inturned wards 20 on the relatively stationary longitudinally slotted cylinder 21, as

best shown in Figures 8 and 9, the wards 20 and stop lips 26 being disposed upon the spaced margins of the longitudinal slot in the cylinder 21. A key guide 23 is mounted in the cylinder 21 and provided with a groove 24 in which the key 18 may slide when the guide 23 is rotated to bring its groove 24 into registry with the open side of the cylinder 21 between the wards 20 and stop lips 26. The key guide 23 is provided with integral collars 28 and 29 at its respective ends which substantially fill the cylinder 21, whereby this guide member may be inserted in the cylinder 21 before the wards 20 and stop lips 26 are pressed inwardly. When these parts are pressed inwardly, they enter the space between the collars 28 and 29 and anchor the guide against longitudinal movement in the cylinder 21 while allowing it to rotate freely. The guide is provided with a reduced end portion 30 which, when the parts are assembled, has its inner end in bearing contact with the catch plate 2.

The cylinder 21 is mounted in a frame which is generally U-shaped in form. This frame is also composed of sheet metal. Its outer end comprises a hollow headpiece 33 having inwardly projecting arms 234i. These arms 3% are substantially parallel except as to the portions 35 which. converge. The in ner end portions 36 are also substantially parallel and are provided with reduced lip shaped extremities 37 adapted to pass through slots or apertures in the catch plate 2 to which these extremities are clinched by bending them upon the inner faces of the catch plate as shown at 38 in Figure 3, whereby the arms 34 are anchored to the catch plate.

The cylinder 21. is held in position by a sheet metal holder 10 having curved cylinder embracing arms #11. The holder 40 is anchored to the catch plate by an arm 12 which bears against the inner face of the portion 36 of one of the armsB-fl and is provided with a lip 48 which also extends through the catch plate 2 and is clinched thereto, as indicated at 44 in Figure 3. Une of the curved arms '41 is indented or pressed inwardly at 15 and engages in a notch 46 in the cylinder 21 to prevent the latter from turning.

From the foregoing description of the. key operated portion of the lock, it will be noted that it comprises a centrally grooved guide 23 rotatively mounted in the cylinder 21 which, in turn, is supported in and anchored to the concentric cylinder holder or mounting 40, the latter being anchored to the catch plate 2. Allof these parts are, in turn, mounted for bodily movement within an auxiliary key receiving casing member 47 projecting outwardly from the wall of the casing 1, as clearly shown in Figures 1 and 3. The head 33 normally projects through the end of the casing member i7 and is adapted to be pressed inwardly to push the catch plate 2 to hasp releasing position when the locking slide 13 has been moved to unlocking position. All of the parts except the guide 23 are formed of sheet metal, pressed or stamped into shape as above described.

The casing member 47 preferably provided combination with a spring inst no? with cylindrically rounded portions and the head has similarly rounded portions 18 adapted to conform to the rounded portions of the member ll in which they slide.

it will of course be understood that when the slide 18 is in locking position, as shown in Figure 3, the bag cannot be opened until a key has been inserted in the guide 23, which key has wards 19 adapted to pass between the wzrds 20 on the relatively stationary cylinder 21. The key must also have a wing 50 adapted to engage in a recess or notch 51 in the locking slide 13, whereby said slide may be shifted from locking to unlocking position. The key preferably has a projection 53 on its inner end, which enters a circular aperture or recess in the catch plate 2 when the key is in a position to rotate within the cylinder 21.

By varying the positions of the wards 20 on the cylinders 21 and correspondingly varying the positions of the wards 19 on the keys. the structure in all other respects remaining the same, it is obvious that locks may be successively made, each of which requires different operating key or, if desired, the locks may be made in sets, wherein each individual member of the set may be operated by lock keys but in which no key can be utilized to lock or unlock a member of a different set.

I claim:

1. A bag lock, comprising the combination with a main casing having an auxiliary key receiving casing projecting from one wall, a resiliently mounted catch plate in the main casing and a key operated slide adapted, in one position, to hold the catch plate in looking position, of a longitudinally slotted cylinder within the auxiliary casing and provided with inturned wards, an enclosing holder therefor having a projecting arm anchored to the catch plate, a supporting frame also having arms anchored to the catch plate and having an end piece provided with a slot adapted to allow a key to enter the cylinder, and a rotary key guide within said cylinder adapted to guide an inserted key to a position for actuating said slide.

2. In a bag lock, the combination with a resiliently mounted catch plate and acasing therefor having a lock receiving projection, of key actuated slide mounted to slide within the casing projection, a key receiving longitudinally slotted cylinder therein provided with inturned wards, a key guide within the cylinder, and a holder for the cylinder provided with a longitudinally projecting arm, said slide and holder being anchored to the catch plate, and said cylinder, holder, slide and easing being formed of stamped sheet metal.

In a bag frame locking mechanism, the supported catch plate, a yoke-shaped finger piece frame secured thereto and having a head provlded with a key hole slot, of a ward carying member within the frame, and a sheet metal holder therefor anchored to the catch plate and provided with portions embracing said ward carrying member to hold it in posltion.

4t. In a bag frame locking mechanism, the combination with a spring supported catch plate, a yoke-shaped finger piece frame se cured thereto and having a head provided with a key hole slot, of a ward carrying member within the frame, and a sheet metal holder therefor anchored to the catch plate and provided with portions embracing said ward carrying member to hold it in position, said catch plate being slotted and said holder and frame each having an arm extending through the slot and clinched upon the inner face of the catch plate.

5. In a bag lock, the combination with a casing, a resiliently mounted has'p engaging catch member therein adapted to be yieldingly pressed to releasing position, a slide controlling yielding movement of the catch member, a frame connected with the catch member and having a head piece projecting through the casing and provided with a key hole, a longitudinally slotted cylinder supported from the catch member and within the head piece and provided with inturned key controlling wards, and a key adapted to enter said cylinder through said key hole and to engage and actuate said slide, said key being formed for rotation within said cylinder when in slide actuating position.

6. In a bag lock, the combination with a casing, a resiliently mounted hasp engaging catch member therein adapted to be yieldingly pressed to releasing position, a slide controlling yielding movement of the catch member, a frame connected with the catch member and having a head piece projecting through the casing and provided with a key hole, a longitudinally slotted cylinder supported from the catch member and within the head piece and provided with inturned key controlling wards, and a key adapted to enter said cylinder through said key hole and to engage and actuate said slide, said key being formed for rotation within said cylinder when in slide actuating position, and said frame headpiece being guided by the casing in its catch actuating movements.

7 In a lock having a catch member and a slide for locking said catch member, the com-' bination with a barrel having wards, of a key for operating said slide and having wards adapted to cooperate with the wards on said barrel, and a slotted rotatable key guide journaled in said barrel adapted to receive said key in said slot, said barrel comprising a piece of sheet metal bent to form a cylinder having longitudinally extending and peripherally spaced margins provided with integral projections bent inwardly of the cylinder to form wards.

8. In a lock having a catch member and a slide for locking said catch member, the combination with a non-rotatable ward carrying barrel, of a key for operating said slide and havingwards, and a slotted rotatable key' guide journaled in said barrel and adapted to receive said key in said slot, said barrel comprising a longitudinally split cylinder having spaced longitudinal margins, one of which is provided with integral wards projecting inwardly of the cylinder and adapted to receive between them the wards on said key.

9. In a lock having a catch member and a slide for locking said catch member, the combination with a key for operating said slide and having wards, of a rotatable key guide having a pair of spaced annular shoul ders and a longitudinal slot for receiving said key, and a non-rotatable barrel inclosing said shoulders and providing a barrel therefor, Said barrel having wards extending into the space between said shoulders and adapted to co-operate with the'wards on said key. 7

10. In a lock having acatch member and a slide for locking said catch member, the combination with a key for operating said slide and having wards, of a rotatable key guide having a pair of spaced annular shoulders, and a longitudinal slot for receiving said key, and a non-rotatable barrel inclosing said shoulders and providing a bearing therefor, said barrel comprising a longitudinally split cylinder having spaced longitudinal margins, one of said margins being provided with integral inturned wards adapted to extend into the space between the shoulders on said guide and to co-operate with the wards on said key.

11. In a lock having a catch member and a slide for locking said catch member, the combination with a key for operating said slide and having wards, of a rotatable key guide having a pair of spaced annular shoulders and a longitudinal slot for receiving said key, and a non-rotatable barrel enclosing said shoulders and providing a bearing therefor, saidbarrel comprising a longitudinally split cylinder having spaced longitudinal margins, one of said margins being provided with integral inturned wards and the other ofsaid margins being provided with integral inturned stop lips, said wards and stop lips being spaced apart to permit the wards on said key to pass be tween them and being extended into the space between the shoulders on said guide, said wards and lips co-operating with the wards on said key to permit the key to be rotated in said barrel.

12. In a lock having a catch member and said wards and lips eo-operating with the wards on said key to permit the key to be rotated in either direction in said cylinder.

13. In :1 look having a key provided With Wards a barrel having Wards adapted to cooperate with the wards on said key, said barrel comprising a piece of sheet metal bent to form a cylinder having longitudifvsith the nnlly matending and peripherally spaced nmrgins provided with integral projections bent inwardly oi the cylinder to form Wards. 14. In a look having a key provided with W a barrel having Wards and stop lips cireninter-entially spaced therefrom, said wards and lips being adapted to eo-operate ards on said key, the barrel comprising a piece of sheet metal bent to form cylinder haying longitudinally spaced margins, one of said margins having integral projeutions bent inwardly to form wards and the other of said margins having integral projections bent inwardly to form stop lips.

FRED GRIMM. 

